Glowing Puffleg
Eriocnemis vestita
The glowing puffleg is 9 to 10 cm (3.5 to 3.9 in) long. Males weigh 3.3 to 7.2 g (0.12 to 0.25 oz) and females 3.6 to 5.3 g (0.13 to 0.19 oz). It has a straight blackish bill. The nominate subspecies' male has shining dark green upperparts with a golden green rump and uppertail coverts. It has a glittering purple throat patch thinly surrounded by golden green. The rest of its throat and its upper breast are shining blackish green, its belly glittering golden green, and its undertail coverts iridescent purplish blue. Its leg puffs are white. The tail is forked and dark steel blue. Voice: The glowing puffleg's only described vocalization is "a single metallic note 'tseek' or doubled 'tsi-tseek', repeated at irregular intervals". It is given both from a perch and while hovering.
ID text from Wikipedia, CC BY-SA 4.0
Sapphire-vented Puffleg
Eriocnemis luciani
The sapphire-vented puffleg is 11.4 to 14 cm (4.5 to 5.5 in) long and weighs 5.4 to 6.4 g (0.19 to 0.23 oz). It has a straight black bill. The nominate subspecies' male has metallic grass green upperparts with a shining dark blue forecrown. Its underparts are mostly glittering golden green with a glittering purple vent and undertail coverts. Its leg puffs are white and the tail is deeply forked and blue-black. The female is slightly smaller, with a less deeply forked tail, but has the same plumage. Subspecies E. l. Voice: The sapphire-vented puffleg's call is described as a "sharp tirr tirr".
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Glowing Puffleg and Sapphire-vented Puffleg.